Počet záznamů: 1

Magnetic mapping of distribution of wood ash used for fertilization of forest soil

  1. 1.
    0486295 - GFU-E 2019 RIV NL eng J - Článek v odborném periodiku
    Petrovský, Eduard - Remeš, J. - Kapička, Aleš - Podrázský, V. - Grison, Hana - Borůvka, L.
    Magnetic mapping of distribution of wood ash used for fertilization of forest soil.
    Science of the Total Environment. Roč. 626, June (2018), s. 228-234 ISSN 0048-9697
    Institucionální podpora: RVO:67985530
    Klíčová slova: forest soil * wood ash * fertilizing * tree plants * iron oxides * rock magnetism
    Kód oboru RIV: DE - Zemský magnetismus, geodézie, geografie
    Impakt faktor: 4.900, rok: 2016

    The effect of wood-ash fertilization on forest soils has been assessed mainly through geochemical methods (e.g.,
    content of soil organic matter or nutrients). However, a simple and fastmethod of determining the distribution of
    the ash and the extent of affected soil is missing. In this studywe present the use ofmagnetic susceptibility,which
    is controlled by Fe-oxides, in comparing the fertilized soil in the forest plantation of pine and oakwith intact forest
    soil. Spatial and vertical distribution of magnetic susceptibility was measured in an oak and pine plantation
    next to stems of young plants,where wood ash was applied as fertilizer. Pattern of the susceptibility distribution
    was compared with that in non-fertilized part of the plantation as well as with a spot of intact natural forest soil
    nearby. Our results showthat thewood-ash samples contain significant amount of ferrimagneticmagnetitewith
    susceptibility higher than that of typical forest soil. Clear differences were observed betweenmagnetic susceptibility
    of furrows and ridges.Moreover, the dispersed ash remains practically on the surface, does not penetrate to
    deeper layers. Finally, our data suggest significant differences in surface values between the pine and oak plants.
    Based on this study we may conclude that magnetic susceptibility may represent a simple and approximate
    method of assessing the extent of soil affected by wood-ash.
    Trvalý link: http://hdl.handle.net/11104/0281155